On Mon, May 13, 2019 at 7:39 AM Alexandre Chartre <alexandre.char...@oracle.com> wrote: > > pcpu_base_addr is already mapped to the KVM address space, but this > represents the first percpu chunk. To access a per-cpu buffer not > allocated in the first chunk, add a function which maps all cpu > buffers corresponding to that per-cpu buffer. > > Also add function to clear page table entries for a percpu buffer. >
This needs some kind of clarification so that readers can tell whether you're trying to map all percpu memory or just map a specific variable. In either case, you're making a dubious assumption that percpu memory contains no secrets.
